Bending rolls machine



.July 2s, 1936.

' P. PARcELLs BENDING ROLLS MACHINE l Filed May 1o, 1935 sheets-sheet 1 BENDING ROLLS MACHINE Filed May 10, 1935 2 Sheets-Sheet 2 5y @W (3, www

Patented July 28, 1936 .PATENT oFFieEl 2,049,173 BENDING RoLLs MACHINE vPaul ParcellsChicago, 'Ill., assigner to Geo. Whiting Company, a corporation of Illinois Application May 10, 1935, Serial No. 20,870

Claims.

This invention relates particularly -to bending rolls machines, such machines being commonly employed for forming sheet metal pipes, which may be either corrugated or non-corrugated.

5 Sheet metal corrugated pipes are commonly employed for culvert purposes.

Machines for forming large sheet metal pipes areV ordinarily of heavy construction. To enable the pipe to be removed from the roll about which -the sheet metal is bentv into tubular form, the

bearing at one end of the roll is made withdrawable to enable the formed pipe to be slipped on the roll. It is known practice, also, to provide means for shifting from its normal position the roll about which the pipe is formed, after the bearing at one end of the roll has been Withdrawn. I

The primary object of the present invention is to facilitate the withdrawal and the return to normal position of the removable bearing of the roll, thus facilitatingthe work, in the case 1 of heavy machines, ofrernoving the pipe from the machine after it has been formed.

The invention is illustrated in a preferred embodiment in theaccompanying drawings, in

Which- 1 Fig. 1 is a vertical longitudinal sectional view of a machine embodying the invention, taken as indicated at line I of Fig. 2; Fig. 2, an end elevational view of the same; Fig. 3, a transverse vertical sectional view taken as indicated at line 3 of Fig. 1; and Fig. 4, an inner side elevational view of the counterweighted swinging standard which is provided with a bearing for the free end of the roll upon which the metal pipe is to be formed.

In the embodiment illustrated, A designates a frame, shown as comprising longitudinal basemembers A', main end-standards A2 and A3, and

40 an intermediate standard A4, these standards being carried by the longitudinal base-members A'; A5, a swinging-standard mounted on a transverse pivot I carried by the main end-standard A5, the standard A5 being provided in its upper end with a bearing 2; B, a set of bending-rolls suitably supported in the frame, shown as comprising a lower roll B', a back-'roll B2, and a shiftable upper roll B3, the latter being the roll about which the pipe is to be formed.

The roll B is shown journaled in bearings 3 and 4 which are vertically adjustable in the standards A3 and A4, respectively. The roll B2 is mounted in adjustable bearings 5 with which the standards A3 and A4 are provided. 'I'he roll B3 has its front end-portion (drive end of machine)V journaled in bearings 6 and 1 forming a part of a yoke 8, the bearings being in the `form of eccentrics journaled in portions!! of the standards A2 and A4.

The yoke 8 may be moved through the medium .5 of a hand-lever I0 in a known manner to shift the roll B3 to a somewhat diagonal position after the standard A5 has been'swung to the full-line position shown in Fig. l. Shifting the rear end of the roll B3 laterally is aknown expedient for getting the roll sufficiently removed from normal position to enable the formed pipe to be removed from the roll.

The bearings 3 and 4 are vertically adjustable in a known manner through the medium of a f5, longitudinally disposed shaft I I whichis equipped with a hand-wheel IIa, said shaft being jour naled in brackets I2 carried by the standards A3 and A4. The bearings are carried by vertical screws I3 which are actuated by nuts formed in 20 -bevel-pinions I4 which are actuated by bevelpinions I5 secured on the shaft Il. The shaft II is disposed medially at the lower portions of the standards A3 and A4; and the bevel-pinions are housed below the medialportions of the 25 standards mentioned. i

Adjustment of the bearings 5 is accomplished through mechanism I6, in known manner.

A shaft Il, equipped with a largegear I8, serves to actuate the rolls through the medium ,1 30 of pinions I9 which gear the rolls positively together. The large gear I8 may be actuated by a pinion driven by a suitable motor, or in any desired manner.

The swinging standard A5 which is located 35 outside the main end-standard A3 is normally secured in vertical position in any desired manner. As shown in Fig. 2, the casting of the endstandard A3 is provided with heavy lugs 20 whose lower ends support the pivot I; and the stand- 40 ard A5, in the normal position, is housed between the vertical surfaces 2I afforded by said lugs. A locking-disk 22 is shown supported on a pivot 23. This locking-disk drops by gravity to the locking position shown in Fig. 2. It may 45 be swung away from this position through the medium of a stud 24 to unlock the swinging standard A5.

Depending from the standard A5 is an angularform counterweight C, which is shown as corn- 50 prising a bent arm 25, having one end secured, as by bolts 255, to the standard A5, and having the other end equipped with a weight 26 secured to the lower end of the arm, as by bolts 21. The elbow 28 of the arm 25 accommodates the lower 55 having a stem 2Gb which is secured to the lower` end of the arm 25. The slot or spacebetween the furcations. 26eaccommodates .the 4centrally disposed; Vac'ijus'ting`V means for. the bearing 3. That is, the slotted Weight 26 straddles the bracket I2 and the adjusting shaft I I whenthe: Vstandard A5 isin the full line position Mshown Fig. 1. f Y Y It will benoted that. viewed as-showninFig. 1, the counterweight provides a Ar'novfenfiemt which tends to swing the standard A? upwardly from the full line position shown in FigL-l. On the other hand, when the standard A5 is inthe-nerf y mal operative position shown by dotted lines inV Fig. 1, the' Weight 261s -substa'ntiallyWithin the plane o'fthe pivotl, so that the standard A5 is approximately' balanced 'in` theY upright position.

By the arrangement Vshown,the swinging fsta'rldaifdf A5-is ele'ti'vely counterbal/ncei and,

v"Iiii'tvvithstan'ding its heavy v'veight, maybel moved with ease from the operative position to the inf operative position. and vice versa. The standard 'is v:show-vn` equipped Vwith a handle 29 by means of' which the swinging movements may blev effec'ted Y Y igWhile corrugated bending rolls 'are Vshown in the drawings, plain rolls rnay be` employed. Also, the grouping of the bending rolls may be as desired. 'It i's'known, for example, to locate the two lower rolls' in ahorizontal plane and locate the 'upperroll fab ve'thespae between the'two loWer Ifolls. h Q Y The'fre'going detailed description hasbeen given for elearness of Vunders'ta'riding only, and no unnecessary limitations should be understood therefrom, but the appended claims should be construedi'a's `broadly vas permissible Ain vview Vof 'the prior art."

y What VI- regard 'asnew and desire t secure by Letters Patent is: A t 1` Y 1'.` lII`1` Cblbinat ithj-a "Irlakzhiie" comp-rising a set of bending Yrolls and a 'frain'efwhich com'- .prises amainend-"stanrdard 'equipped withbearings for certain of said -rolls and which. 'compivoted standard -is inA o pen position.-

prises also a pivoted standard adaptedto swing downwardlyy and away'from the plane of said main end-standard, said swinging-standard having a bearing for one of therolls: al counter-V weight carried by and dependingfrom said piv- 5 f oted standard adapted to swing beneath said main end-standard and furnish a counterbalancing moment for said pivoted standard. Y Y 2. In combination with a machine comprising a'set of bending rolls vand' a frame which comprises, a main end-standard equipped with bearings for certain of said rolls and equipped below said bearings with a vtransverse pivot Vand a a swinging standard supported on said pivot have ing near Yits upper enda bearing for eneof said rolls aboun'terweight comprising la bent arm carried by Vand depending from said second-V Y mentionedstandard and adapted to extend bei neath said main end-standard when the pivoted y Y standard is in open position, anda weight clar- 20 r-iedvby the Vlower 'ei'rtrfernityfoi said. arin located 'substantially 'in a vertical lin'e belowv :said pivot Y 'when said-.pivoted standard isin theioperative V3'. In combination: arnaeliine'comprising a set. 'of bending rolls,Y 'a fratriel which fcor'nprises a Amain end-standard "equipped withadjustable bearings for lcertair'i fof 'said rolls, an outwardly and downwardly-swinging 'pivoted standadprovided with l30V a bearing-for one f vthe rolls,and mediately dipo'sedladjus'ting" nieans Connected'with said inain'end-standard for'adjusti'ng said rstfmentio'riedr bearings: a counterweightcarried by and depending l ffro'rn said f' pivoted standard, said 35 counterweight Vbeirigbi angular form and' eX- tending beneath said :nain end-standard-l'when the pit/etenv stadardjs fopen position, said o'unterweight beingY iorinedf to clear said" ad'- Ll'ustlg n'ean's; I fit? Y' a f 41. Astr'uctiiie as speeied inclairn Y'2, in "which said weight is disposedv below' and substantially in the plane ofv 'said' pivot when the pivoted standard'is' in yfoperative Aposition- V Y l 5. 'A 'structure as' 'specified-ini elaim 3,V in which said counterweight isV disposed Vbelow and ,sub s'tatially 'in the planeof -s'aidpivot when vthe pivoted standard in operati-veiposition.

'- Q VPAUL PARCELS. 5o 

